Singapore Budget 2014 introduced a 10% tobacco tax hike and a 25% alcohol tax hike. With. Immediate. Effect.
This coffeeshop wanted to make sure you knew who was to blame for your costlier cigarettes and beer and not give them a hard time about it, I suppose.
My mother-in-law also noticed this at the coffeeshop near her place, and said, "When Gahmen wants to tax you, it is immediate. When Gahmen wants to give you something (in her case, the Pioneer Generation package), it is later."